Methyl 3-bromo-5-chloro-6-(trifluoromethoxy)pyridine-2-acetate
Methyl 4-bromo-3-chloro-2-(trifluoromethoxy)pyridine-6-acetate
Methyl 3-bromo-5-chloro-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 4-bromo-6-chloro-2-(trifluoromethoxy)pyridine-3-acetate